#384B5A
Closest named color: Dark Grey Blue (#29465B). oklch(40.3% 0.035 242.5), rgb(56, 75, 90).
Aa
White text reads best on this color (9.04:1).
About this color
#384B5A is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.035 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.04:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #384B5A |
| RGB | rgb(56, 75, 90) |
| HSL | hsl(206, 23%, 29%) |
| OKLCH | oklch(40.3% 0.035 242.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #384B5A | 9.04:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #384B5A | 2.32:1 | Fails | Lc 13.2 | Not readable |
| #384B5A text on white | 9.04:1 | AAA | Lc 90.8 | Preferred for body text |
| #384B5A text on black | 2.32:1 | Fails | Lc -11.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C3CD
oklch(81% 0.02 240.8)
-
Step 400
400
#90A4B4
oklch(70.8% 0.032 242.2)
-
Step 500
500
#748DA1
oklch(63.1% 0.042 242.5)
-
Step 600
600
#5C778C
oklch(55.6% 0.045 242)
-
Step 700
700
#4C6477
oklch(49.1% 0.042 242.5)
-
Step 800
800 (this color)
#384B5A
oklch(40.3% 0.035 242.5)
-
Step 900
900
#35444F
oklch(37.8% 0.027 240.2)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#384B5A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #454B5B | 0.019 |
| Deuteranopia (no green cones) | #40475A | 0.016 |
| Tritanopia (no blue cones) | #2D4F50 | 0.029 |
| Achromatopsia (no color) | #494949 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384B5A
#384B5A
oklch(40.3% 0.035 242.5)
- #564535
#564535
oklch(40.4% 0.035 64.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #384B5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.029
- Charcoal #264653 ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.043
- Deep Teal #00555A ΔE 0.049
- Dark Teal #014D4E ΔE 0.052
- YInMn Blue #415A77 ΔE 0.061
- Dark Blue Green #005249 ΔE 0.062
Use #384B5A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.